How to attach the listing at aside

Hai, i would like to know to attach the listing (1,2,3) at aside as shown by the attachment below. May I know how to get that setting. Thanks for helping.

(mod edit)
InkedCapture_LI.jpg

InkedCapture_LI.jpg

@thanost

Your topic was Moved to it's current location / section as it is more suitable.

Line numbers are enabled in the "PREFERENCES"

Could you also take a few moments to Learn How To Use The Forum.
Other general help and troubleshooting advice can be found here.
It will help you get the best out of the forum in the future.

Thanks, I will go through it after this. Sorry for bringing the inconvenience.

No problem these things are what we are here for.